No shrinking or warping.
No smell.
No enclosure required.
Build plate can be heated or not (depends on brand).
Can be printed on glass without any glue*
Does not absorb water or moisture from air, so no storage container needed.
Clear color is the most transparent of all filament materials.
Is much "tougher" that PLA or ABS; will bend before breaking.
Uses about the same extruder temps as ABS.
Does not need a print cooling fan like PLA does.
Also known as Polyester, PETG, PETT, PET+
Is what most soda pop bottles are made of.
Does not degrade in water.
FDA approved in the USA for for food contact.
Not brittle.
Is the most recycled plastic.
Prices are coming down, and some are about the same as ABS.